Margin gluing machine



Jan; 3, 1950 C. F. SCHAEFER MARGIN GLUING MACHINE 2 Sheets-Sheet l Filed Nov. 2, 1946 A- FIGI Jan. 3, 1950 c. F. SCHAEFER MARGIN GLUING MACHINE 2 Sheets-Sheet. 2

Filed Nov. 2, 1946 il@ @Y l INVENTOR. CHARLES fcf/AEFER Patented Jan. 3, 195) PATENT (lIfJJINGr` MACHINE v'tiharles -F. `Schaefer, Norwalk, Oonn.

Application-,Noueniber v2, 1946,v Serial No. 7.0375418 28 lafims.

This invention4 relatesto iniprovemjentsinmar- .sin loins ,maphmsand is..oarft.ic.u1.ar1y :dreted to. a maoh'inefor appiyinga strip orstripoiofglue onotherfadhesiveltothe margin or ledge of a sheet Q'fmateriai.

'.One of the objectsfoi thegpresent "invention re.- sfides'in the provision oflfamachinjeorthe charac,- ter` indicated which 4has a .minimum number. of

parts and which can be readily .and accuratelyl assembled.

' Another 'object ofthis inventionis theprovision of a .machine ,having an .adhesive or .glue 'tank which ijs readily. removable "for cleaning, repair or replacement.

u Another object of thisjinvention resides in the .Provision .in a maohine Tof the. 'character indicated, 'of 'a A glue 'tank :which j removably tuiizolts the 'tank Aroller whereby `-that vroller Y can `be readily removed with the .tank and` from tn etank.

YA further objevectV of the present invention 'resides in 'ajnove'l mount or 'support `for the glue tank, whereby 'the tank .is resiliontly supported, .and whio'hQn"turnprovides a res1iont-suppotifor the. tank roller.

A still'further object 'isthe-.provision ofheating means 'for the tank, which, `while separate from, 'always `maintaine.d yin contact .withythe tank fbottom and is moved .with the tankduring adjustment ofthe latter.

'A further object of the present vinvention resides in readily voperable vvmeans for adjusting the position of the tank.

` Other'and furtherobj'ec'tsof-thepresentinvention will -bemanifest `from the Ifollowing descrip- ;tlon and the accompanying 4drawings in Ywhich -ldr'awingsz 1iiilig. 1"-is aside-'elevational View of- 'the -machine dffthe ypresent invention;

' F'ig. 2 iis 'av rear elevational view thereof;

Fig 3-=is va lfragmentary endwiew yo'f the-'pivoted fonds lof the `gluetank and heater;

Fig. f4 fisfa r'fragmentary side view goflth'e tank Sand 'heater supporting means;

"Fig.5 lis alplanyview of several'parts of'=the'ma chine;

` "Fig Y6 is an enlarged vfragmentary v iew partly yin section lof one of Ithe-tank supports;

vlliig. '7 is a view similar zto Fig. v6, showing a ymod'- 'ied :form offoneof the tank supports; and

'Referring to the drawings vin detail the machine .shown in Figs. `1 land 2 comprises abedorsupport tu having atransversely extending vertical yparvftition rt2 located` substantially centrally ofthe bed I the machine.

`A drivingmotor '|54 is mounted' on the machine bedfandA is provided Vwith a pulley I6 over which afdrVe'bItIa passes. The drivebelt passes Vover @larger -pul1ey-20-icarried by a 'shaft'zz' in -a jour'- nel '24 supported. "Standard .26. 'The 'inner end fof Vthe shaftfzcarries agpinicn y2 8 which `vis inmoshjwithageer 30. 'lhe 'soar 30i1s in mosh wjitha Pinion 32.0.11V stub.. shaft '34 'which carries a :pinion '36 atjits other end, the latter .pinion 'drivesgp'inio'ns 33 andq on shafts 42 anjd Mere Spoctively.

Feodinerollers #tand were 'fixed on thorshafts 42 and -44 respectively, and normally contact :a gluing roller :50, Ajsheet of vmaterial 52 ito be glued "issupported by a'guide 15'4 andvpassed between the feed'roilers and thejgluing roller. The latter roller .normally vcontacts a tank rolleni.

The tank rollershas `a pair off stub-shafts5`8 carried. in brackets Gilimounted. in Aonen bearing on either side 'wall vof `a glue tank 6,2. VThese brackets each have a scraper member'SA `adapted tofcontact the'end 'of theroller'to remove excess glue therefrom, and prevent 'the Ysame fromr con,- 'tacting 'the brackets. vIt `will be noted 'that .the 'brackets 'and scraper members 'are spaced inwardly from the 'sidewalls of the tank. whereby lexcess glue removed v'by thescrapers will be returned vto :the "tank whereby 'to prevent it from :flowing over theA side-'walls of the tankV and inter- Tering. Withtheopon bearings thereon.-

The tankis supported at one vendgby depending legs 66, the lower ends of 'whichare grooved, as shown in "Fig. '8, and rest-upon lrounded sections ora cross'bar'f'. The cross bar vis supported .at each o f its endsfin astandard 10 provided with compression (springs-"12 on which squared end `'hl ofithe bar rests. An-adjusting screw 16. is pro.- vided ina threaded Lbore at thetop ofthe standards, whereby-theheightof the bar Acan be addusted manually.

The otherend ofthe tankis supported on an eccentric member mounted on ay shaft 82 havvingvcne of its rbearings .in the partition l2 and its otherl bearing :in laf'jiournal :814. Integral with `vor secured to fthes'hafft of the eccentric vmember '80 isla quadijant'iiprovided .with amgripping projection or handle :'88- whereby the keccentric can -be-rotated to'several positions within 180 degrees. The -quaclrant has ran 1arcuate slot 9B. A looking member isfprovi'ded forthe quadrant in the'forrn of Ja :screw extendingfthrough the slot into a threaded 'bore i-n fthe partition I 2. The Vother end-o'f'this--screwlhasaknuled knob 92 to facili- `tateturning of the-screw into the partition i 2 whereby-the knob will-engage and lock` the quadrant land Jconsequently the leccentric member in :adusted position. "The rear `end of the tank is .supportedfon',the'feccentric'member '86 in such a. mannerthat counterclockwiseand clockwise rotation of the lquadrant-,and consequently the eccentric member -willjresu'lt in `the raising or lowering @respectively ofthe rearl end of the tant; causing the" same `togriivct .on the cross bar .68.

Itfwiilbe'eppreciated'that as vvthe rear :end of the tank is raised and lowered in the manner described the tank roller carried by the tank will be adusted relative to the gluing roller. It will also be appreciated that, by reason of the resilient mounting of the tank, the tank roller will likewise be resiliently mounted to compensate for movement of the tank roller away from the gluing roller in the event lumps of glue, pieces of cardboard or other foreign matter in the glue, pass between these rollers. The resultant separation of the rollers to permit such passage will thereby automatically be compensated for Without any deleterious effect on the rollers or roller bearings.

The bearings for the shafts of the feed rollers, as well as the feed roller pinions 32, 36, 38 and 40, are carried in a bracket 96 supported on one end of lever means. The lever means comprises an arm 98 one end of which fits into a socket |00 in the bracket 96 and the other into a socket member |02 pivotally mounted on the partition I2. When the machine is being assembled the lever means is set in position and the bracketA 96 so positioned in contact with the gluing roller 50 that the feed rollers 46 and 48 are in exact parallel alignment with the gluing roller, and so that the pinion 32 will properly mesh with the gear 30. When this alignment and meshing has been effected, the lever means is then secured in position by tightening set screw |04 in the socket |00 and set screw |06 in socket |02. desired, permanent pins may be substituted for the set screws.

The advantages of the lever means just described over levers cast in one piece, as in prior machines of this character, will readily be appreciated. When the arm is made in one piece, as in prior structure, unless the holes for the pivot stud and bearing holes for the feed rollers are drilled and machined with extreme accuracy, spoilage of parts may result during manufacture of the machine. With the lever means of the present invention there is considerable saving in costly machining operations, in that no preformed holes are required, and the lever means, pinions and feed rollers fit with optimum accuracy when the machine is assembled.

When the lever means has been properly positioned, as above described, contact between the feed rollers and the gluing roller can thereafter be adjusted by means of the screw |08.

The drive for the tank roller 56 is from the driven gear 30, pinion I I0, which is in mesh therewith, and which is keyed to shaft ||2 on the inner end of which is keyed a pinion I I4 in mesh with a gear IIS on the tank roller shaft.

An electric heater |30 for the tank is shown in Fig. 4. This heater comprises a housing |32 for a heating element |34. One end of the housing has a projecting portion |36 at each side thereof. The projecting portions are in the form of hooks |38 which fit over the cross bar 68 for pivoting thereon. The other end of the heater has a flat platform |42 which rests onthe eccentric member 80 and which supports one end of the tank 62.

The heater housing is preferably made of sheet metal suitably insulated on its nether side.

As will be seen from Fig. 4, the heater is supported independently of the Vtank so that it will not interfere with the removability of the tank, yet it will be raised and lowered by the eccentric member 80 and the adjustable cross bar 68 during the raising and lowering of the tank.

The modified form of support for the tank shown in Fig. 7 is somewhat similar to that shown in Fig. 6. In the modified form, however, there Thereafter, if

is no cross bar, the tank in this form being supported directly on vertical rods |20, at each corner of one end of the tank, these rods each having a pointed lower end adapted to rest in a conical depression |22 in the bed of the machine. The adjustment of the tank in the modified form is accomplished by turning collars |24 and |26 on the threaded ends, respectively, of the rod |20. In this modified form, as in the preferred form, the tank is resiliently mounted in springs |28. When the heating means are employed with this modified form the same may be bolted directly to the tank.

From the foregoing it will be seen that the present invention provides a machine for coating sheet material of varying thickness, such as cardboard, leather, shoe soles, paper, cloth and the like; the machine being adjustable to accommo date each sheet by means of the adjusting screw |08, the manipulation of which will move the feeding roller bracket 96, and consequently the feeding rollers into any desired adjusted position relative to the gluing roller.

It will also be seen that the present invention provides a machine having a minimum number of parts, which are readily assembled, adjusted and disassembled.

While I have illustrated and described certain embodiments of my invention it is to be understood that I do not wish to be limited to such embodiments, as obviously various changes and modifications may be made therein without departing from the spirit and scope of my invention.

What I claim is:

1. In a gluing machine of the class described, the combination of a base, a glue tank, a tank roller mounted on said tank, a gluing roller dis.- posed in close proximity to said tank roller to receive glue therefrom, a feed roller in contact with said gluing roller, supporting means for said feed roller, means for pivotally mounting one end of said tank on said base, and means on said base for adjusting the height of the other end of said tank, said feed roller supporting means including an elongate arm pivotally mounted on said base,

and means for varying the effective length of said arm.

2. In a gluing machine of the class described, the combination of a base having a stop thereon, a glue tank, a tank roller mounted on said tank, a gluing roller disposed in close proximity to said tank roller to receive glue therefrom, a feed roller in contact with said gluing roller, supporting means for said feed roller mounted on said base above said tank, means for pivotally mounting one end of said tank on said base, and means on said base for adjusting the height of the other end of said tank, said feed roller supporting means including an elongate arm and an adjustable member on said arm for engaging said stop.

3. In a gluing machine of the class described, the combination of a base, a glue tank, a tank roller mounted on said tank, a gluing roller disposed in close proximity to said tank roller to receive glue therefrom, a feed roller in contact with said gluing roller, supporting means for said feed roller mounted on said base, means for pivotally mounting one end. of said tank on said base, means on said base for adjusting the height of the other end of said tank, and a heater unit beneath said tank having one end supported by said means for pivotally mounting said tank and having its other end supported by said tank height adjusting means, said tank being removably mounted on said heater unit and .its

means for pivotally mounting one end thereof.

4. In a gluing machine of the class described, the combination of a base, a glue tank, a tank roller mounted on said tank, a gluing roller disposed in close proximity to said tank roller to receive glue therefrom, a feed roller in contact with said gluing roller, supporting means for said feed roller mounted on said base, means for pivotally mounting one end of said tank on said base, and means on said base for adjusting the height of the other end of said tank, said last mentioned means including a shaft journalled on said ba-se, a lever on said shaft for effecting the height adjustment, manually operable means on one end of said shaft for rotating said shaft to operate said lever, and means associated With said manually operable means for securing the same to retain said lever in adjusted position.

5. In a gluing machine of the class described, the combination of a base having a pair of upright extensions formed with substantially v ertical guideways, a rod having its ends disposed in said guideways, resilient means for mounting the ends of said rod, a glue tank having one end thereof mounted on said rod, a tank roller mounted on said tank, a gluing roller mounted on said base above said tank and adjacent said tank roller to receive glue therefrom, and means on said base for adjusting the height of the other end of said tank.

6. In a gluing machine of the class described, the combination of a base having a pair ofupright lugs formed with substantially vertical guideways, a rod having its ends disposed in said guideways, resilient means for mounting the ends of said rods, a glue tank having one end thereof mounted on said rod, a tank roller mounted on said tank, a gluing roller mounted on said base above said tank in close proximity to said tank roller to receive glue therefrom, means on said i base for adjusting the height of the other end of said tank, and a heater unit beneath said tank having one end supported on said rod and having its other end supported on said tank height adjusting means, said tank being removably mounted on said heater unit and said rod.

7. In a gluing machine of the class described, the combination of a base having a stop thereon, a glue tank, a tank roller mounted on said tank, a gluing roller mounted on said base in close proximity to said tank roller to receive glue there- 6 from, a feed roller in contact with said gluing roller, supporting means for said feed roller including an elongate arm pivotally mounted on said base, means for varying the effective length a gluing roller mounted on said base in close proximity to said tank roller to receive glue therefrom, a feed roller in contact With said gluing roller, supporting means for said feed roller including an elongate arm. pivotally mounted on 1 said base, means for varying the effective length of said arm, an adjustable member on said arm for engaging said stop, means Ifor pivotally mounting one end of Said tank on said base, resilient means for supporting said last menl .i tioned means on said base, means on said base for adjusting the height of the other end of said tank, and drive means for effecting rotation of said tank roller and said feed roller including a iixed gear, gear means rotatable With said tank roller and meshing With said fixed gear, and gear means on feed roller support rotatable with said feed roller and meshing with said fixed gear.

CHARLES F. SCHAEFER.

REFERENCES CITED The following references are of record in the le of this patent:

UNITED STATES PATENTS Number Name Date 219,963 Mather Sept. 23, 1879 911,241 Inman Feb. 2, 1909 917,857 Faifer Apr. 13, 1909 1,008,616 Sargent Nov. 14, 1911 1,282,950 Reifsnyder Oct. 29, 1918 1,409,908 Affelder Mar. 21, 1922 1,587,638 Feybusch et al June 8, 1926 1,744,244 Rider et al Jan. 21, 1930 2,314,519 Schultz et al Mar. 23, 1948 00 2,320,523 Jirousek June 1, 1943 

